As grugq keeps saying, the advancement in deepfakes will not make a huge change in fake news as long as cheapfakes (reusing images from different context) is quick and effective. This and the photos of people hoarding gas in the US seem to confirm it once more.
That's a good point I hadn't heard before, perhaps it would be relatively straight forward to build tools that detect this kind of thing? E.g., as per the article, an image/video tagged as being in 'Syria' later being tagged in 'Gaza' could be flagged up for human review.